Police were appealing for information on the whereabouts of Alice Hart, 23, who was missing from Fulham.
Officers were called at 09:57hrs on Friday, 9 February to reports of a body of a woman found at a reservoir in Lonsdale Road, SW13.
Officers and the London Ambulance Service attended and the woman was pronounced dead at the scene.
While formal identification awaits, Alice's family has been informed of this development.
At this early stage in the investigation, the death is being treated as unexplained.